PLUMULARIA. 155 
off to him, in the hope that what had been lacking was at 
last found. At page 118 of the second edition, he says, 
““Since the preceding sheet was printed, I have received 
from my friend D. L. a specimen of Plumularia myriophyl- 
lum with ovaries. These are very peculiar, and unlike any 
I have observed in any other Sertularian zoophyte. In the 
ovigerous plumules there arises from the base of the polype- 
cell and on its outer side, a long gracefully curved process ; 
and as all the processes curve round in one direction, they 
give the pinnule a secund character and habit very different 
from that of the barren shoots. The processes are alternate, 
hollow, coarsely denticulated on the external edge; and at 
their base, opposite the polype-cell, the ovaries are situated. 
These are didymous, or in pairs, sessile, smooth, resembling 
a mussel-shell in shape, and easily detached. They differ 
from the horny vesicles of the Sertuarine in texture and in 
shape, and may best be described as naked ovaries. The 
spinous process which protects them, appears to be formed 
by a prolongation of the spine that supports the barren 
polype-cell.”” } 
This remarkable specimen was got by a fisherman, adher- 
ing to his long lines, off Whiting Bay, Arran, and being 
struck with its beauty, like a kind-hearted man, he took it 
